How could you falter when you're the Rock of Gibraltar?
Falter: to walk unsteadily; to hesitate in purpose or action
The Rock of Gibraltar is basically a very massive rock made of limestone located at the entrance of the Mediterranean Sea. It was used as fortress against the Germans in WWII. You can read more about it here, but here’s the key point: the Rock of Gibraltar is a symbol of strength.
So it’s more of a rhetorical question: how could Jay Z make a mistake when he’s so strong and perfect?
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